Muffler or silencer for carbureters.



No. 728,200. PATENTED MAY 19, 1903.

I. E. BUTLER.

MUFFLER OR' SILENCER FOR GARBURETERS.

APPLIOATION Hmm JAN. 21. 190s.

H0 MODEL.

geg. w la M moved.

UNITED STATES Patented May 19, `1903.

PATENT OEEICE.

IRA E. BUTLER, OF CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 728,200, dated May 19, 1903.

Application filed January 2l, 1903. Serial No.139,946. (No model.) i

T0 all zult/mt t may concern.:

Be it known that I, IRA E. BUTLER, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful.

Improvemontsin Mufflers or Silencers for Carbureters, of which the following isa full, clear, and exact specification. Y

My invention relates to carbureters; and its object is to provide devices which will prevent the buzzing or humming caused by the inrushing outer atmosphere into the air and vapor mixing devices of the carbureter. This I accomplish by the means hereinafter fully described and as particularly pointed out in the claims.

In the drawings, Figure l is a side elevation of my invention. Fig. 2 is a Vertical central section therethrough. Fig. 3 is a side view of the intake-pipe with the muffler re Fig. el. is a horizontal section taken on dotted line 4 4, Fig. 2. Y

My in veution can be applied to the air-intake pipe of any carbureter; but it is particularly applicable tothe mixing devices of the carbureter for which I have made application for patent, filed January 2l, 1903, Serial No. 139,945. Its essential features are, first, an intake-pipe A, and, second, the muflier B, within which said pipe is inclosed. In the drawings this intake-pipe is shown as connected to and arising from a horizontallydisposed cylindrical air-chamber C, and its upper end is slit so as to provide a series of two or more tongues d a a, which are bent back in such a curved course as to form springs that stand out from the circumference of said pipe. I prefer to use at least three of the tongues, to make them correspond in shape and dimensions, and to arrange them equal distances apart.

The muffler B comprises a cylinder which is closed only at its upper end and is provided with a non-vibratory or asbestos lining D. Its internal diameter is greater than that of pipe A and is slightly less than the diameter of the imaginary circle bounding the tongues a, and it is slipped longitudinally down over` pipe A and is centered and held in any position to which it may be adjusted by the outward pressure of thetongues ct against its inner surface. v

The downward adjustment of the mufder over pipe Ais limited by its closed upper end coming iu contact with the upper extremities Yof the fingers?? b, extending from its upper end Vto pipe A regulates the speed of the current entering pipe A, and the non-vibratory lining .of the same prevents the vibrations of the shell ofthe muflier and deadens any sound caused by such inrushinglaircurrents no matter what'position the muffler maybe in.

What I claim as new, and desire to secure by Letters Patent, is

l. A silencer for carbureters comprising an air-intake pipe, and a muffler consisting of a hollow shell closed at one end and open at the other having its interior circumference lined with a non-vibratory material and of a greater diameter than that of said pipe, and means for centering and supporting said muflier upon said pipe.

2. A silencer for carbureters comprising an air-intake pipe, and a longitudinally-adjustable muffler consisting of a hollow shell closed at one end and open at the other having its interiorcircumference lined with a non-vibra tory material and of a greater diameter than that of said pipe, and means integral with said pipe for centering and supporting said muflier upon Said pipe.

3. A silencer for carbureters comprising an air-intake pipe, a muffler consisting of a hollow shell having its interior circumference lined with a non-vibratory material, and of a greater diameter than that of said pipe, diverging tongues carried on the upper end of said pipe, for centering and supporting said mufer.

4. A silencer for carbureters comprising an air-intake pipe, a muffler consisting of a hollow shell having its interior circumference IOD lined with a non-vibratory material and of a greater diameter than that of said pipe, the entrance of said pipe having longitudinal slits, and diverging tongues, formed by bending the material between said slits back,which center and support said muffler.

5. A silencer for carbureters comprising an air-intake pipe, a mufller consisting of a hollow shell having its interior circumference lined with a non-vibratory material and ofv a greater diameter than that of said pipe, the entrance of said pipe having longitudinal slits, and diver-ging tongues, formed by bending the material between said slits back, which center and support said muffler, and fingers extending longitudinally from the entrance of said pipe between said tongues.

6. A silencer for carbu reters comprising an air-intake pipe, a longitudinally-adjustable muffler consisting ot` a hollow shell having its interior circumference lined with a non vibratorv material, and of a greater diameter than that of said pipe, diverging tongues carried on the upper end of said pipe, for centering and supporting said muffler.

'7. A silencer for carbureters comprising an air-intake pipe, a longitudinally-adjustable muffler consisting of a hollow shell having its interior circumference lined with a nonvibratory material and of a greater diameter than that of said pipe, the entrance of said pipe having longitudinal slits, and diverging tongues, formed by bending the material between said slits back, which center and support said muffler.

8. A silencer for carbureters comprising an air-intake pipe, a longitudinally-adjustable muffler consisting of a hollow shell having its interior circumference lined with a nonvibratory material and of a greater diameter than that of said pipe, the entrance of said pipe having longitudinal slits, and diverging tongues, formed by bending the material between said slits back, which center and support said mufller, and fingers extending longi-v tudinally from the entrance of said pipe be# tween said tongues.

9. In a silencer for carbureters, the combination with asuitable muffler, of an air-intake pipe the entrance edge of which has a series of diverging tongues, and a series of longitudinally-extending fingers alternating therewith, and made in one piece with said pipe.

10. A silencer for carbureters comprising an air-intake pipe, and a muffler consistingl of a hollow shell closed at one end and open at the other into the open end of which said intake-pipe extends longitudinally, said muffler having its interior circumference provided with a nonvibratory material and of a greater diameter than said pipe, and means for centeringand supportingsaidmuffler upon said pipe.

11. A silencer for carbureters comprising an air-intake pipe, and a mufer consisting of a hollow shell closed at one end and open at the other into the open end of which said intake-pipe extends longitudinally, said mut'- er having its interior circumference provided with a non-vibratory material and of a greater diameter than said pipe, and means integral with said pipe for centering and supporting said muffler upon said pipe.

In testimony whereof I have hereunto set my hand this 10th day of November, i902.

IRA E. BUTLER.

Witnesses:

E. W. HART, E. K. LUNDY. 

